docs: def cyllat(r, lonc, z):
      """
      Convert from cylindrical to latitudinal coordinates.
  
      http://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/cyllat_c.html
  
      :param r: Distance of point from z axis.
      :type r: float
      :param lonc: Cylindrical angle of point from XZ plane(radians).
      :type lonc: float
      :param z: Height of point above XY plane.
      :type z: float
      :return: Distance, Longitude (radians), and Latitude of point (radians).
      :rtype: tuple
      """
      r = ctypes.c_double(r)
      lonc = ctypes.c_double(lonc)
      z = ctypes.c_double(z)
      radius = ctypes.c_double()
      lon = ctypes.c_double()
      lat = ctypes.c_double()
      libspice.cyllat_c(r, lonc, z, ctypes.byref(radius), ctypes.byref(lon),
                        ctypes.byref(lat))
      return radius.value, lon.value, lat.value